ci: replace qemu with macos-14 when building aarch64 wheels

Wheels build for linux use docker and using arm64 mac seems to
be way faster than using qemu to emulate aarch64 on x86_64 runners.

.github/workflows/build.yml

@@ -128,11 +128,15 @@ jobs:
 
   build_wheels_linux:
     name: 'Build wheels for Linux'
-    runs-on: ubuntu-20.04
+    runs-on: ${{ matrix.arch.os }}
     strategy:
       fail-fast: false
       matrix:
-        arch: [ aarch64, native ]
+        arch:
+          - name: aarch64
+            os: macos-14
+          - name: native
+            os: ubuntu-20.04
     steps:
       - uses: actions/checkout@v4
         with:
@@ -142,26 +146,21 @@ jobs:
         with:
           python-version: ${{ env.PYTHON_VERSION }}
           cache: 'pip'
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-        if: ${{ matrix.arch == 'aarch64' }}
-        with:
-          platforms: arm64
       - name: prepare build directory
-        run: ./scripts/prepare.sh
+        run: ./scripts/prepare.sh Linux
         env:
-          CIBW_ARCHS_LINUX: ${{ matrix.arch }}
+          CIBW_ARCHS_LINUX: ${{ matrix.arch.name }}
       - name: Install cibuildwheel
         run: python -m pip install cibuildwheel==${{ env.CIBW_VERSION }}
       - name: Build wheels
         working-directory: build
         run: python -m cibuildwheel --output-dir wheelhouse
         env:
           CIBW_BEFORE_ALL_LINUX: ./build.sh
-          CIBW_ARCHS_LINUX: ${{ matrix.arch }}
+          CIBW_ARCHS_LINUX: ${{ matrix.arch.name }}
       - uses: actions/upload-artifact@v4
         with:
-          name: pypi-wheels-linux-${{ matrix.arch }}
+          name: pypi-wheels-linux-${{ matrix.arch.name }}
           path: build/wheelhouse/*.whl
 
   build_wheels_windows:

scripts/prepare.sh

@@ -6,7 +6,11 @@ BUILD_DIR="$SOURCE_DIR/build"
 SQLCIPHER_DIR="$SOURCE_DIR/sqlcipher"
 PYSQLCIPHER_DIR="$SOURCE_DIR/pysqlcipher3"
 
-BUILD_OS=$(uname -s)
+if [ -z "$1" ]; then
+  BUILD_OS=$1
+else
+  BUILD_OS=$(uname -s)
+fi
 
 if [[ $BUILD_OS == 'Linux' ]]; then
   BUILD_PLATFORM='linux'